单项选择题

In a distance learning course, one ____.

A．does not have to see the professors
B．also needs to take exams
C．reduces the learning expenses
D．must revise the schedule to attend the course
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单项选择题
Why has not Kelly talked to the neighbors about her thought
A．Kelly and the neighbors do not talk to each other.
B．Kelly is too shy to complain.
C．Kelly hasn't met them yet.
D．Kelly is afraid that her neighbors will be angry.
单项选择题
What is the disadvantage of the distance learning course
A．It is kind of expensive.
B．It lacks person-to-person contact.
C．It has a heavy schedule.
D．It is new, so it is risky.
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